Display device having a circular display area and non-display area with demux circuit

ABSTRACT

A display device may include a substrate including a circular display area and a non-display area, a plurality of pixels including a first pixel and a second pixel disposed on the display area of the substrate, a first sub-demux circuit connected to the first pixel and disposed on the non-display area, a second sub-demux circuit connected to the second pixel and disposed on the non-display area, a first connection line connected to the first sub-demux circuit and the second sub-demux circuit and disposed on the non-display area to transfer first and second data input signals to the first and second sub-demux circuits, and a plurality of gate stages connected to the pixels and disposed on the non-display area to transfer gate signals to the pixels. Some of the gate stages are disposed between the first sub-demux circuit and the second sub-demux circuit.

CROSS-REFERENCE TO RELATED APPLICATION

This application claims priority under 35 USC § 119 to Korean PatentApplication No. 10-2020-0111600 filed on Sep. 2, 2020, in the KoreanIntellectual Property Office (KIPO), the entire disclosure of which isincorporated herein by reference.

BACKGROUND 1. Field

The present application relates to a display device. More specifically,the present application relates to a display device including aplurality of circuits.

2. Description of the Related Art

Display devices are produced as various types of display devices such asorganic light emitting diodes, liquid crystal displays, and quantum-dotnano light emitting diodes.

Research is being conducted to diversify the shape of the displaydevice. For example, research on a display device having a circulardisplay area is being conducted. The display device having a circulardisplay area may be a circular display device or a polygonal, forexample, rectangular, display device.

A plurality of circuits, e.g., such as a light emitting circuit and agate circuit, may be disposed adjacent to a circumference of thecircular display area. Accordingly, lines for connecting the circuitsand the circular display area may overlap each other. Accordingly, acoupling may occur between the overlapping lines. In addition, since aspace is required for placing the lines, a dead space of the displaydevice may increase.

SUMMARY

In accordance with an embodiment, a display device including a pluralityof circuits is provided.

In a display device according to embodiments, the display device mayinclude a substrate, a plurality of pixels, a first sub-demux circuit, asecond sub-demux circuit, a first connection line, and a plurality ofgate stages. The substrate includes a circular display area and anon-display area surrounding the display area. The pixels include afirst pixel and a second pixel disposed on the display area of thesubstrate. The first sub-demux circuit is connected to the first pixeland is disposed on the non-display area to transfer a first data outputsignal to the first pixel. The second sub-demux circuit is connected tothe second pixel and disposed on the non-display area to transfer asecond data output signal to the second pixel. The first connection lineis connected to the first sub-demux circuit and the second sub-demuxcircuit and disposed on the non-display area to transfer a first datainput signal to the first sub-demux circuit and transfer a second datainput signal to the second sub-demux circuit. The gate stages areconnected to the pixels and disposed on the non-display area to transfergate signals to the pixels. Some of the gate stages are disposed betweenthe first sub-demux circuit and the second sub-demux circuit.

In one embodiment, the first pixel may be disposed in a first pixelcolumn, and the second pixel is disposed in a second pixel column.

In one embodiment, the display device may further include a plurality oflight emitting stages connected to the pixels and disposed on thenon-display area to transfer light emitting signals to the pixels,wherein some of the light emitting stages may be disposed between thefirst sub-demux circuit and the second sub-demux circuit.

In one embodiment, the first pixel may include first, second, and thirdsub-pixels, the second pixel includes fourth, fifth, and sixthsub-pixels, and the first connection line may include first, second, andthird sub-connection lines.

In one embodiment, the first sub-connection line may be connected to thefirst sub-pixel and the fourth sub-pixel, and may transfer a data outputsignal to the first sub-pixel and the fourth sub-pixel. The secondsub-connection line may be connected to the second sub-pixel and thefifth sub-pixel, and may transfer the data output signal to the secondsub-pixel and the fifth sub-pixel. The third sub-connection line may beconnected to the third sub-pixel and the sixth sub-pixel, and maytransfer the data output signal to the third sub-pixel and the sixthsub-pixel.

In one embodiment, the first sub-connection line may be connected to afirst switching transistor connected to the first sub-pixel and a secondswitching transistor connected to the fourth sub-pixel. The secondsub-connection line may be connected to a third switching transistorconnected to the second sub-pixel and a fourth switching transistorconnected to the fifth sub-pixel. The third sub-connection line may beconnected to a fifth switching transistor connected to the thirdsub-pixel and a sixth switching transistor connected to the sixthsub-pixel.

In one embodiment, the display device may further include a firsttransfer line for transferring a first gate-on signal to the firstswitching transistor, the third switching transistor, and the fifthswitching transistor.

In one embodiment, the display device may further include a secondtransfer line for transferring a second gate-on signal to the secondswitching transistor, the fourth switching transistor, and the sixthswitching transistor.

In one embodiment, the first gate-on signal and the second gate-onsignal may be selectively transferred.

In one embodiment, the pixels may further include a third pixel and afourth pixel disposed on the display area of the substrate. The displaydevice may further include a third sub-demux circuit, a fourth sub-demuxcircuit, and a second connection line. The third sub-demux circuit isconnected to the third pixel and is disposed on the non-display area totransfer a third data output signal to the third pixel. The fourthsub-demux circuit is connected to the fourth pixel and is disposed onthe non-display area to transfer a fourth data output signal to thefourth pixel. The second connection line is connected to the thirdsub-demux circuit and the fourth sub-demux circuit and is disposed onthe non-display area to transfer a third data input signal to the thirdsub-demux circuit and transfer a fourth data input signal to the fourthsub-demux circuit. Another of the gate stages may be disposed betweenthe second sub-demux circuit and the third sub-demux circuit, and stillanother of the gate stages may be disposed between the third sub-demuxcircuit and the fourth sub-demux circuit.

In one embodiment, the first pixel may be disposed in a first pixelcolumn, the second pixel may be disposed in a second pixel column, thethird pixel may be disposed in a third pixel column, and the fourthpixel may be disposed in a fourth pixel column.

In one embodiment, a distance between the first sub-demux circuit andthe second sub-demux circuit connected to the first connection line maybe different from a distance between the third sub-demux circuit and thefourth sub-demux circuit connected to the second connection line.

In one embodiment, the display device may further include a plurality oflight emitting stages connected to the pixels to transfer light emittingsignals to the pixels. Some of the light emitting stages may be disposedbetween the first sub-demux circuit and the second sub-demux circuit,another of the light emitting stages may be disposed between the secondsub-demux circuit and the third sub-demux circuit, and still another ofthe light emitting stages may be disposed between the third sub-demuxcircuit and the fourth sub-demux circuit.

In one embodiment, the third pixel may include first, second, and thirdsub-pixels, the fourth pixel may include fourth, fifth, and sixthsub-pixels, and the second connection lines may include first, second,and third sub-connection lines.

In one embodiment, the first sub-connection line may be connected to thefirst sub-pixel and the fourth sub-pixel, and may transfer a data outputsignal to the first sub-pixel and the fourth sub-pixel. The secondsub-connection line may be connected to the second sub-pixel and thefifth sub-pixel, and may transfer the data output signal to the secondsub-pixel and the fifth sub-pixel. The third sub-connection line may beconnected to the third sub-pixel and the sixth sub-pixel, and maytransfer the data output signal to the third sub-pixel and the sixthsub-pixel.

In one embodiment, the first sub-connection line may be connected to afirst switching transistor connected to the first sub-pixel and a secondswitching transistor connected to the fourth sub-pixel. The secondsub-connection line may be connected to a third switching transistorconnected to the second sub-pixel and a fourth switching transistorconnected to the fifth sub-pixel. The third sub-connection line may beconnected to a fifth switching transistor connected to the thirdsub-pixel and a sixth switching transistor connected to the sixthsub-pixel.

In one embodiment, the display device may further include a firsttransfer line for transferring a first gate-on signal to the firstswitching transistor, the third switching transistor, and the fifthswitching transistor.

In one embodiment, the display device may further include a secondtransfer line for transferring a second gate-on signal to the secondswitching transistor, the fourth switching transistor, and the sixthswitching transistor.

In one embodiment, the first gate-on signal and the second gate-onsignal may be selectively transferred.

In a display device according to embodiments, the display device mayinclude a substrate, first to n-th pixels, first to n-th sub-demuxcircuits, a connection line, and a plurality of gate stages. Thesubstrate includes a circular display area and a non-display areasurrounding the display area. The first to n-th pixels are disposed onthe display area of the substrate, where, n is a natural number of 3 ormore. The first to n-th sub-demux circuits are each connected to thefirst to n-th pixels and disposed on the non-display area to transferfirst to n-th data output signals to the first to n-th pixels,respectively. The connection line is connected to the first to n-thsub-demux circuits and disposed on the non-display area to transfer n-thdata input signals to the first to n-th sub-demux circuits,respectively. The gate stages are each connected to the first to n-thpixels and are disposed between the first sub-demux circuit and the n-thsub-demux circuit to transfer gate signals to the first to n-th pixels,respectively.

In one embodiment, the first to n-th pixels may be disposed in first ton-th pixel columns, respectively.

In one embodiment, the display device may further include a plurality oflight emitting stages disposed between the first sub-demux circuit andthe n-th sub-demux circuit.

In one embodiment, each of the first to n-th pixels may include aplurality of sub-pixels, and the connection line includes first to thirdsub-connection lines.

The display device according to embodiments may include a plurality ofsub-demux circuits. At least two of the sub-demux circuits may beconnected to operate as one demux circuit. For example, two sub-demuxcircuits may operate as one demux circuit. At least one light emittingstage and at least one gate stage may be disposed between the twosub-demux circuits.

When the sub-demux circuits are disposed to be spaced apart from eachother, an area overlapping the light emitting lines connected to thelight emitting stage and an area overlapping a gate line connected tothe gate stage with data lines connecting the sub-demux circuits to aplurality of pixels may be reduced.

In addition, the circuits (or stages) may be disposed adjacent to aplurality of pixels connected to the circuits (or stages), so that aspace in which the lines connecting the circuits to the pixels aredisposed may be minimized.

BRIEF DESCRIPTION OF THE DRAWINGS

Illustrative, non-limiting embodiments will be more clearly understoodfrom the following detailed description taken in conjunction with theaccompanying drawings.

FIGS. 1 and 2 are plan views showing a display device according toembodiments.

FIG. 3A is a view schematically showing embodiments in which area A ofthe display device of FIG. 1 is enlarged.

FIG. 3B is a circuit diagram for illustrating a pixel of FIG. 1 .

FIG. 4 is a block diagram schematically showing a connectionrelationship of a first demux circuit disposed in the display device ofFIG. 1 according to the embodiments.

FIG. 5 is a block diagram schematically showing a connectionrelationship between a first demux circuit and a second demux circuitdisposed in the display device of FIG. 1 according to the embodiments.

FIG. 6 is a view showing embodiments in which the first demux circuitdisposed in the display device of FIG. 1 is enlarged.

FIG. 7 is a view showing embodiments of first to third sub-connectionlines included in the display device of FIG. 1 .

FIG. 8 is a sectional view showing a section taken along line I-I′ ofFIG. 7 .

FIG. 9 is a block diagram schematically showing a connectionrelationship of a demux circuit disposed in the display device of FIG. 1according to the embodiments.

FIG. 10 is a view showing embodiments in which the demux circuitdisposed in the display device of FIG. 1 is enlarged.

FIG. 11 is a view showing distances between demux circuits and sub-demuxcircuits.

FIG. 12 is a view showing distances between demux circuits and sub-demuxcircuits.

DETAILED DESCRIPTION OF THE EMBODIMENTS

Hereinafter, embodiments will be described in more detail with referenceto the accompanying drawings. The same reference numerals are used forthe same components in the drawings, and redundant descriptions of thesame components will be omitted.

FIGS. 1 and 2 are plan views showing a display device according toembodiments.

Referring to FIGS. 1 and 2 , the display device may include a displayarea DA and a non-display area NDA. The display area DA may have acircular shape. Although FIGS. 1 and 2 show that the display area DA hasa circular shape with a predetermined curvature, shapes other than acircular shape with a predetermined curvature are possible. For example,the display area DA may have an oval shape. Alternatively, in theembodiments, the display area DA may have a predetermined curvature atan area in which a first straight portion extending in a first directionmeets a second straight portion extending in a second directionperpendicular to the first direction. For example, the display area DAmay have a square shape as a whole and each vertex may have apredetermined curvature. A plurality of pixels P may be disposed in thedisplay area DA. For example, the pixels P may be disposed in a matrixshape. The pixels P may be disposed stepwise at an edge of the displayarea DA. For example, the pixels P may be arranged stepwise at the edgeof the display area DA to express the curvature.

The non-display area NDA may surround the display area DA. As shown inFIG. 1 , the non-display area NDA may have a circular shape like thedisplay area DA. In other words, the display device may have a circularshape.

In addition, as shown in FIG. 2 , the non-display area NDA may have arectangular shape unlike the display area DA. In other words, thedisplay device may have a rectangular shape and have a circular displayarea DA. In addition, the display device may have a polygonal shape witha circular display area DA.

A plurality of circuits for driving the display area DA may be disposedin the non-display area NDA. In other words, the circuits may beelectrically connected to the pixels P disposed in the display area DA.The circuits may be disposed adjacent to the display area DA. Forexample, the circuits may be disposed in a circular shape along thecircumference of the circular display area DA.

In the embodiments, the circuits may transfer a plurality of signals fordriving the pixels P. For example, the circuits may include a datacircuit for transferring data signals to the pixels P. In addition, thecircuits may include a light emitting circuit for transferring lightemitting signals to the pixels P. In addition, the circuits may includea gate circuit for transferring gate signals to the pixels P.

FIG. 3A is a view schematically showing embodiments in which area A ofthe display device of FIG. 1 is enlarged. FIG. 3B is a circuit diagramfor illustrating a pixel P of FIG. 1 .

Referring to FIGS. 1, 3A and 3B, the display device may include pixelsP. The pixels P may include at least one transistor and at least onecapacitor. For example, the pixels P may include first to seventhtransistors TR1, TR2, TR3, TR4, TR5, TR6, and TR7, and a storagecapacitor CST. The pixels P may include a first pixel P1, a second pixelP2, a third pixel P3, and a fourth pixel P4. The display device mayinclude a first demux circuit DC1 and a second demux circuit DC2disposed in the non-display area NDA. The first demux circuit DC1 mayinclude a first sub-demux circuit SDC1 and a second sub-demux circuitSDC2. The second demux circuit DC2 may include a third sub-demux circuitSDC3 and a fourth sub-demux circuit SDC4. In the embodiments, the demuxcircuits DC1 and DC2 may transfer a data signal DATA to the pixels P.

The first pixel P1 may be disposed in a first pixel column. The firstpixel P1 disposed in the first pixel column may be connected to thefirst sub-demux circuit SDC1. The second pixel P2 may be disposed in asecond pixel column. The second pixel P2 disposed in the second pixelcolumn may be connected to the second sub-demux circuit SDC2. The thirdpixel P3 may be disposed in a third pixel column. The third pixel P3disposed in the third pixel column may be connected to the thirdsub-demux circuit SDC3. The fourth pixel P4 may be disposed in a fourthpixel column. The fourth pixel P4 disposed in the fourth pixel columnmay be connected to the fourth sub-demux circuit SDC4.

In the embodiments, the first sub-demux circuit SDC1 may provide a firstdata output signal, for example, first data output signal DO1 of FIG. 4, to the pixels P disposed in the first pixel column. The secondsub-demux circuit SDC2 may provide a second data output signal, forexample, second data output signal DO2 of FIG. 4 , to the pixels Pdisposed in the second pixel column.

The display device may include a gate circuit and a light emittingcircuit. In the embodiments, the gate circuit may include a plurality ofgate stages GS. The light emitting circuit may include a plurality oflight emitting stages ES. The gate stages GS and the light emittingstages ES may be disposed along a periphery of the display area DA.

A plurality of circuits may be disposed between the first sub-demuxcircuit SDC1 and the second sub-demux circuit SDC2. In the embodiments,at least one gate stage GS may be disposed between the first sub-demuxcircuit SDC1 and the second sub-demux circuit SDC2. The gate stage GSmay provide a gate signal to the pixels P. The gate stage GS may beconnected to the pixels P by a gate line GL. The gate stage GS maytransfer a plurality of gate signals GW, GI, and GB to the pixels P.

In addition, in the embodiments, at least one light emitting stage ESmay be disposed between the first sub-demux circuit SDC1 and the secondsub-demux circuit SDC2. The light emitting stage ES may provide a lightemitting signal to the pixels P. The light emitting stage ES may beconnected to the pixels P by a light emitting line EL. The lightemitting stage ES may transfer a light emitting signal EM to the pixelsP.

Accordingly, the pixels P may display an image on the display area DA inresponse to the data output signal, the light emitting signal, and thegate signal.

The first sub-demux circuit SDC1 and the second sub-demux circuit SDC2may be disposed to be spaced apart from each other. In addition, thethird sub-demux circuit SDC3 and the fourth sub-demux circuit SDC4 mayalso be disposed to be spaced apart from each other. A first distance D1in which the first sub-demux circuit SDC1 is spaced apart from thesecond sub-demux circuit SDC2 may be different from a second distance D2in which the third sub-demux circuit SDC3 is spaced apart from thefourth sub-demux circuit SDC4. The first distance D1 and the seconddistance D2 may signify a minimum distance between adjacent sub-demuxcircuits. For example, as shown in FIG. 3A, the first distance D1 may bedetermined by stages, e.g., such as the gate stage GS, the lightemitting stage ES, disposed between the first sub-demux circuit SDC1 andthe second sub-demux circuit SDC2. In addition, the second distance D2may be determined by stages, e.g., such as the gate stage GS, the lightemitting stage ES, disposed between the third sub-demux circuit SDC3 andthe fourth sub-demux circuit SDC4.

Although FIG. 3A shows that the curvature of the display area DA isconstant, the curvature of the display area DA may not be constant. Forexample, the display area DA may have an oval shape. Alternatively, asdescribed above in FIG. 1 , the display area DA may have a predeterminedcurvature in an area where the first and second straight portions meeteach other. The gate stage GS and the light emitting stage ES may bedisposed in different numbers according to the curvature of the displayarea DA. More pixels P may be disposed in a pixel column located at aportion having a large curvature among the circumference of the ovaldisplay area DA compared to a pixel column located at a portion having asmall curvature. Accordingly, a relatively large number of the gatestages GS and the light emitting stages ES may be disposed in the areaadjacent to the pixel column positioned at the portion having the largecurvature. A relatively small number of the gate stages GS and the lightemitting stages ES may be disposed in the area adjacent to the pixelcolumn positioned at the portion having the small curvature.

In other words, the number of the stages, e.g., such as the gate stageGS and the light emitting stage ES, disposed between the first sub-demuxcircuit SDC1 and the second sub-demux circuit SDC2 may vary according tothe curvature of the circumference of the display area DA. Accordingly,the first distance D1 may also vary. Likewise, the number of thecircuits disposed between the third sub-demux circuit SDC3 and thefourth sub-demux circuit SDC4 may vary according to the curvature of thecircumference of the display area DA. Accordingly, the second distanceD2 may also vary.

The first sub-demux circuit SDC1 and the second sub-demux circuit SDC2may be connected by a first connection line 100. Each of the firstsub-demux circuit SDC1 and the second sub-demux circuit SDC2 may receivea data signal through the first connection line 100.

The third sub-demux circuit SDC3 and the fourth sub-demux circuit SDC4may be connected by a second connection line 200. Each of the thirdsub-demux circuit SDC3 and the fourth sub-demux circuit SDC4 may receivea data signal through the second connection line 200.

FIG. 4 is a block diagram schematically showing a connectionrelationship of a first demux circuit DC1 disposed in the display deviceof FIG. 1 according to the embodiments.

Referring to FIGS. 3A and 4 , the first pixel P1 may be connected to thefirst sub-demux circuit SDC1. The second pixel P2 may be connected tothe second sub-demux circuit SDC2. The first sub-demux circuit SDC1 andthe second sub-demux circuit SDC2 may be connected by the firstconnection line 100.

The first connection line 100 may be connected to a data driver (notshown). The first connection line 100 may receive a first data signalDS1 from the data driver. In the embodiments, the first connection line100 may transfer a first data input signal DI1 as the first data signalDS1 to the first sub-demux circuit SDC1. In addition, the firstconnection line 100 may transfer a second data input signal DI2 as thefirst data signal DS1 to the second sub-demux circuit SDC2.

In the embodiments, each of the first sub-demux circuit SDC1 and thesecond sub-demux circuit SDC2 may selectively transfer a data outputsignal to the first pixel P1 and the second pixel P2, based on a gate-onsignal. For example, when a first gate-on signal GO1 for turning on thefirst sub-demux circuit SDC1 is transferred to the first sub-demuxcircuit SDC1, the first sub-demux circuit SDC1 may transfer a first dataoutput signal DO1 as the first data signal DS1 to the first pixel P1. Atthis point, a second gate-on signal GO2 for turning on the secondsub-demux circuit SDC2 may not be transferred to the second sub-demuxcircuit SDC2.

In addition, for example, when the second gate-on signal GO2 istransferred to the second sub-demux circuit SDC2, the second sub-demuxcircuit SDC2 may transfer a second data output signal DO2 as the firstdata signal DS1 to the second pixel P2. At this point, the first gate-onsignal GO1 may not be transferred to the first sub-demux circuit SDC1.

A plurality of circuits may be disposed between the first sub-demuxcircuit SDC1 and the second sub-demux circuit SDC2. For example, thelight emitting stage ES, the gate stage GS, and the like may be disposedbetween the first sub-demux circuit SDC1 and the second sub-demuxcircuit SDC2. At least one light emitting stage ES and at least one gatestage GS may be disposed between the first sub-demux circuit SDC1 andthe second sub-demux circuit SDC2. The first distance D1 may bedetermined according to the disposed number of the light emitting stagesES and the gate stages GS.

FIG. 5 is a block diagram schematically showing a connectionrelationship between a first demux circuit DC1 and a second demuxcircuit DC2 disposed in the display device DA of FIG. 1 according to theembodiments.

FIG. 5 may be substantially the same as FIG. 4 except that the seconddemux circuit DC2 is added.

Referring to FIGS. 3 and 5 , the third pixel P3 may be connected to thethird sub-demux circuit SDC3. The fourth pixel P4 may be connected tothe fourth sub-demux circuit SDC4. The third sub-demux circuit SDC3 andthe fourth sub-demux circuit SDC4 may be connected by the secondconnection line 200.

The second connection line 200 may be connected to the data driver. Thesecond connection line 200 may receive a second data signal DS2 from thedata driver. In the embodiments, the second connection line 200 maytransfer a third data input signal DI3 as the second data signal DS2 tothe third sub-demux circuit SDC3. In addition, the second connectionline 200 may transfer a fourth data input signal DI4 as the second datasignal DS2 to the fourth sub-demux circuit SDC4.

When a first gate-on signal GO1 for turning on the third sub-demuxcircuit SDC3 is transferred to the third sub-demux circuit SDC3, thethird sub-demux circuit SDC3 may transfer a third data output signal DO3as the second data signal DS2 to the third pixel P3. At this point, asecond gate-on signal GO2 for turning on the fourth sub-demux circuitSDC4 may not be transferred to the fourth sub-demux circuit SDC4.

In addition, for example, when the second gate-on signal GO2 istransferred to the fourth sub-demux circuit SDC4, the fourth sub-demuxcircuit SDC4 may transfer a fourth data output signal DO4 as the seconddata signal DS2 to the fourth pixel P4. At this point, the first gate-onsignal GO1 may not be transferred to the third sub-demux circuit SDC3.

In the embodiments, a plurality of stages may be disposed between thefirst sub-demux circuit SDC1 and the second sub-demux circuit SDC2,between the second sub-demux circuit SDC2 and the third sub-demuxcircuit SDC3, and between the third sub-demux circuit SDC3 and thefourth sub-demux circuit SDC4. For example, at least one light emittingstage ES and at least one gate stage GS may be disposed between thefirst sub-demux circuit SDC1 and the second sub-demux circuit SDC2,between the second sub-demux circuit SDC2 and the third sub-demuxcircuit SDC3, and between the third sub-demux circuit SDC3 and thefourth sub-demux circuit SDC4. Each of the first distance D1 and thesecond distance D2 may be determined according to the disposed number ofthe light emitting stages ES and the gate stages GS. In other words, thefirst distance D1 and the second distance D2 may be different from eachother.

In addition, the disposed number of the light emitting stages ES and thegate stages GS may vary according to the structuring of the pixels Padjacent to the circumference of the display area DA. Thus, the firstdistance D1 and the second distance D2 may be determined.

Accordingly, when the sub-demux circuits SDC1, SDC2, SDC3, SDC4 aredisposed to be spaced apart from each other, lines DL, EL, and GLconnected to the pixels P may be connected to the pixels P with aminimized length. Therefore, a dead space of the display device may bereduced.

In addition, when the first sub-demux circuit SDC1 and the secondsub-demux circuit SDC2 are not spaced apart and are disposed adjacent toeach other, the data line DL connected to each pixel column may have anarea overlapping the gate line GL and the light emitting line EL.Accordingly, a coupling phenomenon may occur in the display device.According to the inventive concept, when the sub-demux circuits SDC1,SDC2, SDC3, SDC4 are disposed to be spaced apart from each other, thearea in which the data line DL overlaps the gate line GL and the lightemitting line EL may be reduced.

FIG. 6 is a view showing embodiments in which the first demux circuitDC1 disposed in the display device of FIG. 1 is enlarged.

Referring to FIGS. 3A and 6 , each of the pixels P may include aplurality of sub-pixels. In the embodiments, the first pixel P1 mayinclude first to third sub-pixels SP1, SP2, and SP3. For example, thefirst sub-pixel SP1 may exhibit a red color, the second sub-pixel SP2may exhibit a green color, and the third sub-pixel SP3 may exhibit ablue color. However, other colors may be exhibited. For example, thefirst to third sub-pixels SP1, SP2, and SP3 may exhibit magenta, cyan,and yellow colors, respectively. The first to third sub-pixels SP1, SP2,and SP3 may also emit light with the same color, for example, bluelight. The same color of the light may be converted into differentcolors by a color filter, a color conversion pattern or the likedisposed on the first to third sub-pixels SP1, SP2, and SP3. Inaddition, in the embodiments, the first pixel P1 may include foursub-pixels.

In addition, in the embodiments, the first pixel P1 and the second pixelP2 may include two sub-pixels. The two sub-pixels of the first pixel P1may emit light with a first color and a second color, respectively. Thetwo sub-pixels of the second pixel P2 may emit light with a first colorand a third color, respectively.

In addition, in the embodiments, the first pixel P1 and the second pixelP2 may include two sub-pixels. The two sub-pixels of the first pixel P1may emit light with a first color and a third color, respectively, andthe two sub-pixels of the second pixel P2 may also emit light with thefirst color and the third color, respectively.

The second pixel P2 may include fourth to sixth sub-pixels SP4, SP5, andSP6. In the embodiments, the second pixel P1 may include fourth to sixthsub-pixels SP4, SP5, and SP6. A structure of the second pixel P2 may besubstantially the same as that of the first pixel P1.

The first connection line 100 may include first to third sub-connectionlines 110, 120, and 130. The first to third sub-connection lines 110,120, and 130 may be connected to the first sub-demux circuit SDC1 andthe second sub-demux circuit SDC2.

The first sub-connection line 110 may be connected to the firstsub-pixel SP1. In addition, the first sub-connection line 110 may beconnected to the fourth sub-pixel SP4. Accordingly, the data outputsignal may be selectively transferred to the first sub-pixel SP1 and thefourth sub-pixel SP4. A red data signal may be selectively transferredto the first sub-pixel SP1 and the fourth sub-pixel SP4. For example,when a first switching transistor ST1 is turned on, a first red datasignal may be transferred to the first sub-pixel SP1. Alternatively,when a second switching transistor ST2 is turned on, a second red datasignal may be transferred to the fourth sub-pixel SP4. In theembodiments, the first sub-pixel SP1 and the fourth sub-pixel SP4 may beselectively turned on.

The second sub-connection line 120 may be connected to the secondsub-pixel SP2. In addition, the second sub-connection line 120 may beconnected to a fifth sub-pixel SP5. Accordingly, the data output signalmay be selectively transferred to the second sub-pixel SP2 and the fifthsub-pixel SP5. A green data signal may be selectively transferred to thesecond sub-pixel SP2 and the fifth sub-pixel SP5. For example, when athird switching transistor ST3 is turned on, a first green data signalmay be transferred to the second sub-pixel SP2. Alternatively, when afourth switching transistor ST4 is turned on, a second green data signalmay be transferred to the fifth sub-pixel SP5. In the embodiments, thesecond sub-pixel SP2 and the fifth sub-pixel SP5 may be selectivelyturned on.

The third sub-connection line 130 may be connected to the thirdsub-pixel SP3. In addition, the third sub-connection line 130 may beconnected to a sixth sub-pixel SP6. Accordingly, the data output signalmay be selectively transferred to the third sub-pixel SP3 and the sixthsub-pixel SP6. A blue data signal may be transferred to the thirdsub-pixel SP3 and the sixth sub-pixel SP6. For example, when a fifthswitching transistor ST5 is turned on, a first blue data signal may betransferred to the third sub-pixel SP3. Alternatively, when a sixthswitching transistor ST6 is turned on, a second blue data signal may betransferred to the sixth sub-pixel SP6. In the embodiments, the thirdsub-pixel SP3 and the sixth sub-pixel SP6 may be selectively turned on.

Although the connection line is illustrated as including threeconnection lines, more or less than three connection lines are includedin the connection line in an embodiment. When the number of sub-pixelsis changed, the number of connection lines may also be changed. Forexample, when each of the pixels includes four sub-pixels, theconnection line may also include four connection lines.

The first sub-demux circuit SDC1 may include the first switchingtransistor ST1, the third switching transistor ST3, and the fifthswitching transistor ST5. The second sub-demux circuit SDC2 may includethe second switching transistor ST2, the fourth switching transistorST4, and the sixth switching transistor ST6.

The first sub-connection line 110 may be connected to the firstswitching transistor ST1 and the second switching transistor ST2. Thesecond sub-connection line 120 may be connected to the third switchingtransistor ST3 and the fourth switching transistor ST4. The thirdsub-connection line 130 may be connected to the fifth switchingtransistor ST5 and the sixth switching transistor ST6.

The first switching transistor ST1, the third switching transistor ST3,and the fifth switching transistor ST5 may be electrically connected toa first transfer line CLa. The first transfer line CLa may transfer thefirst gate-on signal GO1 to the first sub-demux circuit SDC1. Forexample, the first transfer line CLa may transfer the first gate-onsignal GO1 to the first switching transistor ST1, the third switchingtransistor ST3, and the fifth switching transistor ST5. Data outputsignals may be transferred to the first pixel P1 through the firstswitching transistor ST1, the third switching transistor ST3, and thefifth switching transistor ST5.

The second switching transistor ST2, the fourth switching transistorST4, and the sixth switching transistor ST6 may be connected to a secondtransfer line CLb. The second transfer line CLb may transfer the secondgate-on signal GO2 to the second sub-demux circuit SDC2. For example,the second transfer line CLb may transfer the second gate-on signal GO2to the second switching transistor ST2, the fourth switching transistorST4, and the sixth switching transistor ST6. Data output signals may betransferred to the second pixel P2 through the second switchingtransistor ST2, the fourth switching transistor ST4, and the sixthswitching transistor ST6.

A plurality of stages, e.g., such as the gate stage GS and the lightemitting stage ES, may be disposed between the first sub-demux circuitSDC1 and the second sub-demux circuit SDC2.

FIG. 7 is a view showing embodiments of first to third sub-connectionlines 110, 120, 130 included in the display device of FIG. 1 .

Referring to FIG. 7 , the first connection line 100 may include thefirst sub-connection line 110, the second sub-connection line 120, andthe third sub-connection line 130.

The first sub-connection line 110 may include a first data input line110 a, a first data distribution line 110 b, a first data transfer line110 c, and a second data transfer line 110 d. The second sub-connectionline 120 may include a second data input line 120 a, a second datadistribution line 120 b, a third data transfer line 120 c, and a fourthdata transfer line 120 d. The third sub-connection line 130 may includea third data input line 130 a, a third data distribution line 130 b, afifth data transfer line 130 c, and a sixth data transfer line 130 d.

The first data distribution line 110 b may be disposed on the first datainput line 110 a. The first data input line 110 a and the first datadistribution line 110 b may be connected to each other by a contacthole. The first data distribution line 110 b may be disposed on thefirst data transfer line 110 c and the second data transfer line 110 d.The first data distribution line 110 b may be connected to the firstdata transfer line 110 c and the second data transfer line 110 d throughcontact holes. A signal flowing through the first data transfer line 110c may be transferred to the first sub-pixel SP1 through a first activelayer ACT1 and a first data output line 210 c. A signal flowing throughthe second data transfer line 110 d may be transferred to the fourthsub-pixel SP4 through a fourth active layer ACT4 and a second dataoutput line 210 d. Accordingly, the data output signal may betransferred to the first sub-pixel SP1 and the fourth sub-pixel SP4. Ared data signal may be selectively transferred to the first sub-pixelSP1 and the fourth sub-pixel SP4.

The second data distribution line 120 b may be disposed on the seconddata input line 120 a. The second data input line 120 a and the seconddata distribution line 120 b may be connected to each other through acontact hole. The second data distribution line 120 b may be disposed ona third data transfer line 120 c and a fourth data transfer line 120 d.The second data distribution line 120 b may be connected to the thirddata transfer line 120 c and the fourth data transfer line 120 d throughcontact holes. A signal flowing through the third data transfer line 120c may be transferred to the second sub-pixel SP2 through a second activelayer ACT2 and a third data output line 220 c. A signal flowing throughthe fourth data transfer line 120 d may be transferred to the fifthsub-pixel SP5 through a fifth active layer ACTS and a fourth data outputline 220 d. Accordingly, the data output signal may be transferred tothe second sub-pixel SP2 and the fifth sub-pixel SP5. For example, ablue data signal may be selectively transferred to the second sub-pixelSP2 and the fifth sub-pixel SP5.

The third data distribution line 130 b may be disposed on the third datainput line 130 a. The third data input line 130 a and the third datadistribution line 130 b may be connected to each other through a contacthole. The third data distribution line 130 b may be disposed on a fifthdata transfer line 130 c and a sixth data transfer line 130 d. The thirddata distribution line 130 b may be connected to the fifth data transferline 130 c and the sixth data transfer line 130 d through contact holes.A signal flowing through the fifth data transfer line 130 c may betransferred to the third sub-pixel SP3 through a third active layer ACT3and a fifth data output line 230 c. A signal flowing through the sixthdata transfer line 130 d may be transferred to the sixth sub-pixel SP6through a sixth active layer ACT6 and a sixth data output line 230 d.Accordingly, the data output signal may be transferred to the thirdsub-pixel SP3 and the sixth sub-pixel SP6. For example, a blue datasignal may be selectively transferred to the third sub-pixel SP3 and thesixth sub-pixel SP6.

Each of the first active layer ACT1, the second active layer ACT2, andthe third active layer ACT3 may serve as a channel for transferring dataoutput signals to the first to third sub-pixels SP1, SP2, and SP3 inresponse to the first gate-on signal GO1 flowing through the firsttransfer line CLa.

Each of the fourth active layer ACT4, the fifth active layer ACT5, andthe sixth active layer ACT6 may serve as a channel for transferring dataoutput signals to the fourth to sixth sub-pixels SP4, SP5, and SP6 inresponse to the second gate-on signal GO2 flowing through the secondtransfer line CLb.

Although FIG. 7 shows that the first to third data distribution lines110 b, 120 b, and 130 b are disposed under the first to third data inputlines 110 a, 120 a, 130 a and the first to sixth data transfer lines 110c, 110 d, 120 c, 120 d, 130 c, 130 d, other structuring is possible inan embodiment. For example, the first to third data input lines 110 a,120 a, and 130 a may be disposed under the first to third datadistribution lines 110 b, 120 b, and 130 b. Alternatively, for example,the first to sixth data transfer lines 110 c, 110 d, 120 c, 120 d, 130c, and 130 d may be disposed under the first to third data distributionlines 110 b, 120 b, and 130 b.

FIG. 8 is a sectional view showing a section taken along line I-I′ ofFIG. 7 .

Referring to FIGS. 6 to 8 , the display device may include a substrateSUB, a gate insulating layer GI, a first interlayer insulating layerILD1, a second interlayer insulating layer ILD2, and the first switchingtransistor ST1. The first switching transistor ST1 may include theactive layer ACT1, the first transfer line CLa, the first data transferline 110 c, and the first data output line 210 c.

In the embodiments, the substrate SUB may contain plastic, and may haveflexible characteristics. Alternatively, in the embodiments, thesubstrate SUB may include glass, quartz, and the like, and may haverigid characteristics.

The first active layer ACT1 may be disposed on the substrate SUB. Thefirst active layer ACT1 may include a semiconductor material. In theembodiments, the first active layer ACT1 may include an oxide-basedsemiconductor material. Alternatively, in the embodiments, the firstactive layer ACT1 may include a silicon-based semiconductor material.

The gate insulating layer GI may be disposed on the substrate SUB whilecovering the first active layer ACT1. The gate insulating layer GI mayinclude an inorganic insulating material. For example, the gateinsulating layer GI may include silicon oxide, silicon nitride, siliconoxynitride, and the like.

The first transfer line CLa may be disposed on the gate insulating layerGI. The first transfer line CLa may include various conductive materialsincluding metal. For example, the first transfer line CLa may includecopper, tungsten, titanium, and the like.

The first interlayer insulating layer ILD1 may be disposed on the gateinsulating layer GI while covering the first transfer line CLa. Thefirst interlayer insulating layer ILD1 may include an inorganicinsulating material. For example, the first interlayer insulating layerILD1 may include silicon oxide, silicon nitride, silicon oxynitride, andthe like.

The first data transfer line 110 c and the first data output line 210 cmay be disposed on the first interlayer insulating layer ILD1. The firstdata transfer line 110 c and the first data output line 210 c mayinclude various conductive materials including metal.

The second interlayer insulating layer ILD2 may be disposed on the firstinterlayer insulating layer ILD1 while covering the first data transferline 110 c and the first data output line 210 c. The second interlayerinsulating layer ILD2 may include an organic insulating material. Forexample, the second interlayer insulating layer ILD2 may includepolyimide.

FIG. 9 is a block diagram schematically showing a connectionrelationship of a demux circuit DC11 disposed in the display device ofFIG. 1 according to the embodiments.

Referring to FIG. 9 , the display device may include a first pixel P11,a second pixel P12, a third pixel P13, the first demux circuit DC11, anda first connection line 1100. The first demux circuit DC11 may include afirst sub-demux circuit SDC11, a second sub-demux circuit SDC12, and athird sub-demux circuit SDC13.

In the embodiments, the first pixel P11 may be connected to the firstsub-demux circuit SDC11. The first sub-demux circuit SDC11 may receive afirst data input signal Dill from the first connection line 1100. Thefirst sub-demux circuit SDC11 may transfer a first data output signalDO11 to the first pixel P11.

In the embodiments, the second pixel P12 may be connected to the secondsub-demux circuit SDC12. The second sub-demux circuit SDC12 may receivea second data input signal DI12 from the first connection line 1100. Thesecond sub-demux circuit SDC12 may transfer a second data output signalDO12 to the second pixel P12.

In the embodiments, the third pixel P13 may be connected to the thirdsub-demux circuit SDC13. The third sub-demux circuit SDC13 may receive athird data input signal DI13 from the first connection line 1100. Thethird sub-demux circuit SDC13 may transfer a third data output signalDO13 to the third pixel P13.

In the embodiments, the first sub-demux circuit SDC11, the secondsub-demux circuit SDC12, and the third sub-demux circuit SDC13 mayselectively transfer a data output signal. For example, when the firstsub-demux circuit SDC11 transfers the first data output signal DO11 tothe first pixel P11, the second sub-demux circuit SDC12 and the thirdsub-demux circuit SDC13 may not transfer the second and third dataoutput signals DO12 and DO13 to the pixels P12 and P13. Alternatively,when the second sub-demux circuit SDC12 transfers the second data outputsignal DO12 to the second pixel P12, the first sub-demux circuit SDC11and the third sub-demux circuit SDC13 may not transfer the first andthird data outputs signals DO11 and DO13 to the pixels P11 and P13.

The first sub-demux circuit SDC11, the second sub-demux circuit SDC12,and the third sub-demux circuit SDC13 may be a 1:3 demux circuit. Adistance spaced between the first sub-demux circuit SDC11 and the thirdsub-demux circuit SDC13 may be determined according to the number oflight emitting stages and the gate stages. However, although FIG. 9shows that the first connection line 1100 is connected to threesub-demux circuits SDC11, SDC12, SDC13, the first connection line 1100may also be connected to four or more sub-demux circuits in anembodiment. At least one light emitting stage and at least one gatestage may be disposed between the sub-demux circuits.

FIG. 10 is a view showing embodiments in which the demux circuit DC11disposed in the display device of FIG. 1 is enlarged.

Referring to FIG. 10 , the display device may include the first to thirdpixels P11, P12, and P13. Each of the first to third pixels P11, P12,and P13 may include a plurality of sub-pixels. In the embodiments, thefirst pixel P11 may include first to third sub-pixels SP11, SP12, andSP13. For example, the first sub-pixel SP11 may exhibit red color, thesecond sub-pixel SP12 may exhibit green color, and the third sub-pixelSP13 may exhibit blue color. However, the first pixel P11 may includefour sub-pixels in an embodiment. In addition, the first to thirdsub-pixels SP11, SP12, and SP13 may exhibit magenta, cyan, and yellowcolors, respectively. The first to third sub-pixels SP11, SP12, and SP13may emit light with the same color, for example, blue light. The samecolors of the light may be differently converted by a color filter, acolor conversion pattern or the like disposed on the first to thirdsub-pixels SP11, SP12, and SP13.

The second pixel P12 may include fourth to sixth sub-pixels SP14, SP15,and SP16. The third pixel P13 may include seventh to ninth sub-pixelsSP17, SP18, and SP19. In the embodiments, a structure of the secondpixel P12 and a structure of the third pixel P13 may be substantiallythe same as a structure of the first pixel P11.

The connection line 1100 may include first to third sub-connection lines1110, 1120, and 1130. The first to third sub-connection lines 1110,1120, and 1130 may be connected to the first sub-demux circuit SDC11,the second sub-demux circuit SDC12, and the third sub-demux circuitSDC13.

The first sub-connection line 1110 may be connected to the firstsub-pixel SP11, the fourth sub-pixel SP14, and the seventh sub-pixelSP17. The data output signal may be transferred to the first sub-pixelSP11, the fourth sub-pixel SP14, and the seventh sub-pixel SP17. A reddata signal may be selectively transferred to the first sub-pixel SP11,the fourth sub-pixel SP14, and the seventh sub-pixel SP17. For example,when a first switching transistor ST11 is turned on, a first red datasignal may be transferred to the first sub-pixel SP11. Alternatively,when a second switching transistor ST12 is turned on, a second red datasignal may be transferred to the fourth sub-pixel SP14. Alternatively,when a third switching transistor ST13 is turned on, a third red datasignal may be transferred to the seventh sub-pixel SP17. In theembodiments, the first sub-pixel SP11, the fourth sub-pixel SP14, andthe seventh sub-pixel SP17 may be selectively turned on.

The second sub-connection line 1120 may be connected to the secondsub-pixel SP12, the fifth sub-pixel SP15, and the eighth sub-pixel SP18.The data output signal may be selectively transferred to the secondsub-pixel SP12, the fifth sub-pixel SP15, and the eighth sub-pixel SP18.A green data signal may be selectively transferred to the secondsub-pixel SP12, the fifth sub-pixel SP15, and the eighth sub-pixel SP18.For example, when a fourth switching transistor ST14 is turned on, afirst green data signal may be transferred to the second sub-pixel SP12.Alternatively, when a fifth switching transistor ST15 is turned on, asecond green data signal may be transferred to the fifth sub-pixel SP15.Alternatively, when a sixth switching transistor ST16 is turned on, athird green data signal may be transferred to the eighth sub-pixel SP18.In the embodiments, the second sub-pixel SP12, the fifth sub-pixel SP15,and the eighth sub-pixel SP18 may be selectively turned on.

The third sub-connection line 1130 may be connected to the thirdsub-pixel SP13, the sixth sub-pixel SP16, and the ninth sub-pixel SP19.The data output signal may be selectively transferred to the thirdsub-pixel SP13, the sixth sub-pixel SP16, and the ninth sub-pixel SP19.A blue data signal may be selectively transferred to the third sub-pixelSP13, the sixth sub-pixel SP16, and the ninth sub-pixel SP19. Forexample, when the seventh switching transistor ST17 is turned on, afirst blue data signal may be transferred to the third sub-pixel SP13.Alternatively, when the eighth switching transistor ST18 is turned on, asecond blue data signal may be transferred to the sixth sub-pixel SP16.Alternatively, when the ninth switching transistor ST19 is turned on, athird blue data signal may be transferred to the ninth sub-pixel SP19.In the embodiments, the third sub-pixel SP13, the sixth sub-pixel SP16,and the ninth sub-pixel SP19 may be selectively turned on.

The first sub-demux circuit SDC11 may include the first switchingtransistor ST11, the fourth switching transistor ST14, and the seventhswitching transistor ST17. The second sub-demux circuit SDC2 may includethe second switching transistor ST12, the fifth switching transistorST15, and the eighth switching transistor ST18. The third sub-demuxcircuit SDC3 may include the third switching transistor ST13, the sixthswitching transistor ST16, and the ninth switching transistor ST19.

The first switching transistor ST11, the fourth switching transistorST14, and the seventh switching transistor ST17 may be connected to afirst transfer line CLc. The first transfer line CLc may transfer afirst gate-on signal GO11 to the first sub-demux circuit SDC11. Forexample, the first transfer line CLc may transfer the first gate-onsignal GO11 to the first switching transistor ST11, the fourth switchingtransistor ST14, and the seventh switching transistor ST17. Accordingly,a first data output signal DO11 may be transferred to the first pixelP11.

The second switching transistor ST12, the fifth switching transistorST15, and the eighth switching transistor ST18 may be connected to asecond transfer line CLd. The second transfer line CLd may transfer asecond gate-on signal GO12 to the second sub-demux circuit SDC12. Forexample, the second transfer line CLd may transfer the second gate-onsignal GO12 to the second switching transistor ST12, the fifth switchingtransistor ST15, and the eighth switching transistor ST18. Accordingly,a second data output signal DO12 may be transferred to the second pixelP12.

The third switching transistor ST13, the sixth switching transistorST16, and the ninth switching transistor ST19 may be connected to athird transfer line CLe. The third transfer line CLe may transfer athird gate-on signal GO13 to the third sub-demux circuit SDC13. Forexample, the third transfer line CLe may transfer the third gate-onsignal GO13 to the third switching transistor ST13, the sixth switchingtransistor ST16, and the ninth switching transistor ST19. Accordingly, athird data output signal DO13 may be transferred to the third pixel P13.

FIG. 11 is a view showing distances between demux circuits and sub-demuxcircuits.

Referring to FIGS. 9 and 11 , the display device may further include afourth pixel P21, a fifth pixel P22, a sixth pixel P23, a second demuxcircuit DC21, and a connection line 2100. The second demux circuit DC21may include a fourth sub-demux circuit SDC21, a fifth sub-demux circuitSDC22, and a sixth sub-demux circuit SDC23. However, other numbers ofsub-demux circuits can be included in the demux circuits DC11 and DC21in an embodiment. For example, the demux circuits DC11 and DC21 may alsoinclude four or more sub-demux circuits.

In the embodiments, the first sub-demux circuit SDC11 and the secondsub-demux circuit SDC12 may be spaced apart from each other by a thirddistance D3. The second sub-demux circuit SDC12 and the third sub-demuxcircuit SDC13 may be spaced apart from each other by a fourth distanceD4. The third distance D3 and the fourth distance D4 may be differentfrom each other. For example, each of the third distance D3 and thefourth distance D4 may be determined according to the number of lightemitting stages and gate stages disposed between the sub-demux circuitsSDC11, SDC12, and SDC13.

In the embodiments, the fourth sub-demux circuit SDC21 and the fifthsub-demux circuit SDC22 may be spaced apart from each other by a fifthdistance D5. The fifth sub-demux circuit SDC22 and the sixth sub-demuxcircuit SDC23 may be spaced apart from each other by a sixth distanceD6. The fifth distance D5 and the sixth distance D6 may be differentfrom each other. For example, each of the fifth distance D5 and thesixth distance D6 may be determined according to the number of lightemitting stages and gate stages disposed between the sub-demux circuitsSDC21, SDC22, and SDC23.

In addition, adjacent demux circuits DC11 and DC21 may be spaced apartfrom each other by a seventh distance D7. Accordingly, the thirdsub-demux circuit SDC13 and the fourth sub-demux circuit SDC21 may bespaced apart from each other by the seventh distance D7.

In the embodiments, at least a part of the third to seventh distancesD3, D4, D5, D6, and D7 may be different. In other words, the third toseventh distances D3, D4, D5, D6, and

D7 may be determined according to the number of light emitting stagesand gate stages disposed between the sub-demux circuits SDC11, SDC12,SDC13, SDC21, SDC22, and SDC23.

FIG. 12 is a view showing distances between demux circuits and sub-demuxcircuits. FIG. 12 may be substantially the same as FIG. 11 except thatthe second demux circuit DC21 includes two sub-demux circuits SDC21 andSDC22. Accordingly, the description for duplicate components will beomitted.

Referring to FIG. 12 , the second demux circuit DC21 of FIG. 12 mayinclude two sub-demux circuits SDC21 and SDC22. Accordingly, the demuxcircuits DC11 and DC21 may include different numbers of sub-demuxcircuits. Even in the above case, the third, fourth, fifth, and seventhdistances D3, D4, D5, and D7 may be determined according to the numberof light emitting stages and gate stages disposed between the sub-demuxcircuits SDC11, SDC12, SDC13, SDC21, and SDC22.

Although the inventive concept has been described with reference to theembodiments, it will be apparent to a person having ordinary skill inthe art that various modifications and variations can be made withoutdeparting from the scope and field of the following appended claims.

Embodiments may be applied to a display device or the like. For example,the display device may be applied to smartphones, tablets, laptops, andmonitors.

Although it has been described with reference to embodiments, it will beapparent to a person having ordinary skill in the art that variousmodifications and variations can be made without departing from thescope and field of the following appended claims.

The display device according to the embodiments may be applied to adisplay device included in a computer, a notebook, a mobile phone, asmartphone, a smart pad, a PMP, a PDA, an MP3 player, or the like.

Although the display devices according to the embodiments have beendescribed with reference to the drawings, the illustrated embodimentsare examples, and may be modified and changed by a person havingordinary knowledge in the relevant technical field without departingfrom the technical spirit described in the following claims.

What is claimed is:
 1. A display device comprising: a substrateincluding a circular display area and a non-display area surrounding thedisplay area; a plurality of pixels including a first pixel and a secondpixel disposed on the display area of the substrate; a first sub-demuxcircuit connected to the first pixel and disposed on the non-displayarea to transfer a first data output signal to the first pixel; a secondsub-demux circuit connected to the second pixel and disposed on thenon-display area to transfer a second data output signal to the secondpixel; a first connection line connected to the first sub-demux circuitand the second sub-demux circuit and disposed on the non-display area totransfer a first data input signal to the first sub-demux circuit andtransfer a second data input signal to the second sub-demux circuit; aplurality of gate stages connected to the pixels and disposed on thenon-display area to transfer gate signals to the pixels, wherein some ofthe gate stages are disposed between the first sub-demux circuit and thesecond sub-demux circuit; and a plurality of light emitting stagesconnected to the pixels and disposed on the non-display area to transferlight emitting signals to the pixels, wherein some of the light emittingstages are disposed between the first sub-demux circuit and the secondsub-demux circuit.
 2. The display device of claim 1, wherein the firstpixel is disposed in a first pixel column, and the second pixel isdisposed in a second pixel column.
 3. The display device of claim 1,wherein the first pixel includes first, second, and third sub-pixels,the second pixel includes fourth, fifth, and sixth sub-pixels, and thefirst connection line includes first, second, and third sub-connectionlines.
 4. The display device of claim 3, wherein the firstsub-connection line is connected to the first sub-pixel and the fourthsub-pixel, and transfers a data output signal to the first sub-pixel andthe fourth sub-pixel, the second sub-connection line is connected to thesecond sub-pixel and the fifth sub-pixel, and transfers the data outputsignal to the second sub-pixel and the fifth sub-pixel, and the thirdsub-connection line is connected to the third sub-pixel and the sixthsub-pixel, and transfers the data output signal to the third sub-pixeland the sixth sub-pixel.
 5. The display device of claim 3, wherein thefirst sub-connection line is connected to a first switching transistorconnected to the first sub-pixel and a second switching transistorconnected to the fourth sub-pixel, the second sub-connection line isconnected to a third switching transistor connected to the secondsub-pixel and a fourth switching transistor connected to the fifthsub-pixel, and the third sub-connection line is connected to a fifthswitching transistor connected to the third sub-pixel and a sixthswitching transistor connected to the sixth sub-pixel.
 6. The displaydevice of claim 5, further comprising: a first transfer line fortransferring a first gate-on signal to the first switching transistor,the third switching transistor, and the fifth switching transistor. 7.The display device of claim 6, further comprising: a second transferline for transferring a second gate-on signal to the second switchingtransistor, the fourth switching transistor, and the sixth switchingtransistor.
 8. The display device of claim 7, wherein the first gate-onsignal and the second gate-on signal are selectively transferred.
 9. Adisplay device comprising: a substrate including a circular display areaand a non-display area surrounding the display area; a plurality ofpixels including a first pixel, a second pixel, a third pixel and afourth pixel disposed on the display area of the substrate; a firstsub-demux circuit connected to the first pixel and disposed on thenon-display area to transfer a first data output signal to the firstpixel; a second sub-demux circuit connected to the second pixel anddisposed on the non-display area to transfer a second data output signalto the second pixel; a first connection line connected to the firstsub-demux circuit and the second sub-demux circuit and disposed on thenon-display area to transfer a first data input signal to the firstsub-demux circuit and transfer a second data input signal to the secondsub-demux circuit; a plurality of gate stages connected to the pixelsand disposed on the non-display area to transfer gate signals to thepixels, wherein some of the gate stages are disposed between the firstsub-demux circuit and the second sub-demux circuit; a third sub-demuxcircuit connected to the third pixel and disposed on the non-displayarea to transfer a third data output signal to the third pixel; a fourthsub-demux circuit connected to the fourth pixel and disposed on thenon-display area to transfer a fourth data output signal to the fourthpixel; and a second connection line connected to the third sub-demuxcircuit and the fourth sub-demux circuit and disposed on the non-displayarea to transfer a third data input signal to the third sub-demuxcircuit and transfer a fourth data input signal to the fourth sub-demuxcircuit, and wherein another of the gate stages are disposed between thesecond sub-demux circuit and the third sub-demux circuit, and stillanother of the gate stages are disposed between the third sub-demuxcircuit and the fourth sub-demux circuit.
 10. The display device ofclaim 9, wherein the first pixel is disposed in a first pixel column,and the second pixel is disposed in a second pixel column, the thirdpixel is disposed in a third pixel column, and the fourth pixel isdisposed in a fourth pixel column.
 11. The display device of claim 9,wherein a distance between the first sub-demux circuit and the secondsub-demux circuit connected to the first connection line is differentfrom a distance between the third sub-demux circuit and the fourthsub-demux circuit connected to the second connection line.
 12. Thedisplay device of claim 9, further comprising: a plurality of lightemitting stages connected to the pixels to transfer light emittingsignals to the pixels, wherein some of the light emitting stages aredisposed between the first sub-demux circuit and the second sub-demuxcircuit, another of the light emitting stages are disposed between thesecond sub-demux circuit and the third sub-demux circuit, and stillanother of the light emitting stages are disposed between the thirdsub-demux circuit and the fourth sub-demux circuit.
 13. The displaydevice of claim 9, wherein the third pixel includes first, second, andthird sub-pixels, the fourth pixel includes fourth, fifth, and sixthsub-pixels, and the second connection lines include first, second, andthird sub-connection lines.
 14. The display device of claim 13, whereinthe first sub-connection line is connected to the first sub-pixel andthe fourth sub-pixel, and transfers a data output signal to the firstsub-pixel and the fourth sub-pixel, the second sub-connection line isconnected to the second sub-pixel and the fifth sub-pixel, and transfersthe data output signal to the second sub-pixel and the fifth sub-pixel,and the third sub-connection line is connected to the third sub-pixeland the sixth sub-pixel, and transfers the data output signal to thethird sub-pixel and the sixth sub-pixel.
 15. The display device of claim13, wherein the first sub-connection line is connected to a firstswitching transistor connected to the first sub-pixel and a secondswitching transistor connected to the fourth sub-pixel, the secondsub-connection line is connected to a third switching transistorconnected to the second sub-pixel and a fourth switching transistorconnected to the fifth sub-pixel, and the third sub-connection line isconnected to a fifth switching transistor connected to the thirdsub-pixel and a sixth switching transistor connected to the sixthsub-pixel.
 16. The display device of claim 15, further comprising: afirst transfer line for transferring a first gate-on signal to the firstswitching transistor, the third switching transistor, and the fifthswitching transistor.
 17. The display device of claim 16, furthercomprising: a second transfer line for transferring a second gate-onsignal to the second switching transistor, the fourth switchingtransistor, and the sixth switching transistor.
 18. The display deviceof claim 17, wherein the first gate-on signal and the second gate-onsignal are selectively transferred.
 19. A display device comprising: asubstrate including a circular display area and a non-display areasurrounding the display area; first to n-th pixels disposed on thedisplay area of the substrate, where, n is a natural number of 3 ormore; first to n-th sub-demux circuits each connected to the first ton-th pixels and disposed on the non-display area to transfer first ton-th data output signals to the first to n-th pixels, respectively; aconnection line connected to the first to n-th sub-demux circuits anddisposed on the non-display area to transfer n-th data input signals tothe first to n-th sub-demux circuits, respectively; and a plurality ofgate stages each connected to the first to n-th pixels and disposedbetween the first sub-demux circuit and the n-th sub-demux circuit totransfer gate signals to the first to n-th pixels, respectively.
 20. Thedisplay device of claim 19, wherein the first to n-th pixels aredisposed in first to n-th pixel columns, respectively.
 21. The displaydevice of claim 19, further comprising: a plurality of light emittingstages disposed between the first sub-demux circuit and the n-thsub-demux circuit.
 22. The display device of claim 19, wherein each ofthe first to n-th pixels includes a plurality of sub-pixels, and theconnection line includes first to third sub-connection lines.